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Toshiba LC-850M

Date of introduction:  1978 Display technology:  LCD 
New price:   Display size:  8
Size:  1.2" x 4.4" x 0.35"    
Weight:  1.2 ounces Serial No:  009696
Batteries:  CR2430 Date of manufacture:  year 1978
AC-Adapter:   Origin of manufacture:  Japan
Precision:  8 Integrated circuits:  Toshiba T3567
Memories:  1    
Program steps:   Courtesy of:  Friedrich Distelkamp

We wrote the year 1977 when Texas Instruments introduced with the TI-1700 DATACLIP a calculator shaped like a ruler. Within one year both Canon and Toshiba responded with the Ruler-8 resp. this LC-850M.

LC-850M_PCB.jpg (55231 Byte)Dismantling the Toshiba LC-850M reveals a standard design based on the Toshiba T3567 single-chip calculator circuit introduced together with its sibbling T3566 located in the TI-1790 Datachron.




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If you have additions to the above article please email: joerg@datamath.org.

Joerg Woerner, November 15, 2005. No reprints without written permission.